scholarly journals Identification of the spaghetti eels (Moringua Sp) at Pelabuhan Ratu, Indonesia using mtDNA control region sequences

2021 ◽  
Vol 322 ◽  
pp. 01023
Author(s):  
Melfa Marini

Eels are economic species of fish. The diversity of eel in the world is essential knowledge that we have to know to manage fisheries in the future. One of the types of eels is Moringua Sp. There are around 11 species of Moringua sp. in the world. In Indonesia, the diversity of Moringua sp. was no information yet. The aim of this study is to the identification of Moringua sp in Indonesia. The method used in this study is a sanger sequence method using the mtDNA control region. Base on this study, we found 726 and 745 base pairs alignment of Moringua by sequencing. The result of BLAST showed identically 87% to Moringua edwardsi and 89% as a Moringua microchir. The low percentage of BLAST yields shows that the sample used for this study is not strong enough to be declared as one of the Moringua species obtained from the results of BLAST analysis. Suspected of being another Moringua species. Thus, to get robust result, further research related to this species identification using COI or Cyt-b.

2008 ◽  
Vol 150 (1) ◽  
pp. 45-53 ◽  
Author(s):  
Jacob Höglund ◽  
Tomas Johansson ◽  
Albert Beintema ◽  
Hans Schekkerman

2017 ◽  
Vol 29 (5) ◽  
pp. 800-804
Author(s):  
Yin-Xia Li ◽  
Yi-Long Gao ◽  
Xing-Liang He ◽  
Shao-Xian Cao

2003 ◽  
Vol 81 (12) ◽  
pp. 1938-1946 ◽  
Author(s):  
Huanzhang Liu ◽  
Yiyu Chen

With 210 genera and 2010 species, Cyprinidae is the largest freshwater fish family in the world. Several papers, based on morphological and molecular data, have been published and have led to some solid conclusions, such as the close relationships between North American phoxinins and European leuciscins. However, the relationships among major subgroups of this family are still not well resolved, especially for those East Asian groups. In the present paper, the mitochondrial DNA (mtDNA) control region, 896–956 base pairs, of 17 representative species of East Asian cyprinids was sequenced and compared with those of 21 other cyprinids to study their phylogenetic relationships. After alignment, there were 1051 sites. The comparison between pairwise substitutions and HKY distances showed that the mtDNA control region was suitable for phylogenetic study. Phylogenetic analysis indicated that there are two principal lineages in Cyprinidae: Cyprinine and Leuciscine. In Cyprinine, the relationships could be a basal Labeoinae, an intermediate Cyprininae, and a diversified Barbinae (including Schizothroaxinae). In Leuciscine, Rasborinae is at the basal position; Gobioninae and Leuciscinae are sister groups; the East Asian cultrin–xenocyprinin taxa form a large mono phyl etic group with some small affiliated groups; and the positions of Acheilognathinae and Tincinae are still uncertain.


2001 ◽  
Vol 49 (4) ◽  
pp. 411 ◽  
Author(s):  
Lisa Pope ◽  
Daryn Storch ◽  
Mark Adams ◽  
Craig Moritz ◽  
Greg Gordon

Short-nosed bandicoots, Isoodon, have undergone marked range contractions since European colonisation of Australia and are currently divided into many subspecies, the validity of which is debated. Discriminant function analysis of morphology and a phylogeny of Isoodon based on mtDNA control region sequences indicate a clear split between two of the three recognised species, I. macrourus and I. obesulus/auratus. However, while all previously recognised taxa within the I. obesulus/auratus group are morphologically distinct,I. auratus and I. obesulus are not phylogenetically distinct for mtDNA. The genetic divergence between I. obesulus and I. auratus (2.6%) is similar to that found among geographic isolates of the former (I. o. obesulus and I. o. peninsulae: 2.7%). Further, the divergence between geographically close populations of two different species (I. o. obesulus from Western Australia and I. a. barrowensis: 1.2%) is smaller than that among subspecies within I. auratus (I. a. barrowensisand I. auratus from northern Western Australia: 1.7%). A newly discovered population of Isoodon in the Lamb Range, far north Queensland, sympatric with a population ofI. m. torosus, is shown to represent a range extension of I. o. peninsulae (350 km). It seems plausible that what is currently considered as two species, I. obesulus and I. auratus, was once one continuous species now represented by isolated populations that have diverged morphologically as a consequence of adaptation to the diverse environments that occur throughout their range. The taxonomy of these populations is discussed in relation to their morphological distinctiveness and genetic similarity.


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